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#1
07-20-2006, 08:03 AM
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What a pain in the keister: Here is a test for you!
Lets see how many of you can diagnose this. (I already fixed it but I figured I'd throw it in here as a learning experience for others) I'll post the fix in a day or 2
So I get done with a service call yesterday (Weds). My truck is giving me probs starting. I finally manage to get it started. But at low RPM it's running rough then stalls. At hwy speeds everything is fine, but at lights I have to keep the engine revved above 1200 RPM or it just stalls. Freaked me out to hell and back being 30 miles from my tools and this happens. As soon as I examined the symptoms in my head I realized what it was. And no SES codes were set. 60 bux later things were back to normal..  Feel free to ask me about other symptoms, again just wanted to throw this out here for giggles and see what others come up with. Like I said, it's already fixed.
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  95 s10 Blazer, EGR Mod, ZQ8 Steering box mod, 99 Center console shifter mod and more... See everything at www.pghconsulting.net/teal 
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#4
07-20-2006, 10:55 AM
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Re: What a pain in the keister: Here is a test for you!
Bad 02 Sensor, or EGR...
TPS or MAF or MAP or LOW Battery Voltage, Bad Ground,, Coil, Fuel pressure regulator..... Understand that these are the things I would CHECK FIRST, And not just go on a parts buying spree
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1998 BLAZER LS Vin-W 4Dr 2wd 2004 Cavalier LS 4Dr 2.2 Ecotec "Good Part's ain't Cheap--Cheap Parts ain't Good"  Last edited by DINO55; 07-20-2006 at 05:37 PM.
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#5
07-20-2006, 01:46 PM
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Re: What a pain in the keister: Here is a test for you!
Keep on goin guys.... Yer gettin there... And when you do, you need to figure out why it caused the symptoms....
 (Point of the excercise is to figure out cause and why it causes the symptoms as opposed to just "Throwing Parts and Money" and a problem... Welcome to diagnostics 101 gentleman (and occasional ladies)
__________________
95 s10 Blazer, EGR Mod, ZQ8 Steering box mod, 99 Center console shifter mod and more... See everything at www.pghconsulting.net/teal
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#7
07-20-2006, 01:54 PM
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Re: What a pain in the keister: Here is a test for you!
Ditributor cap or wires.
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98 Blazer LS 4x4 (STOCK) ---------------------------------- .ǝɹǝɥʇ noʎ ʇǝb 11ıʍ pɐoɹ ʎuɐ 'buıob ǝɹɐ noʎ ǝɹǝɥʍ ʍouʞ ʇ,uop noʎ ɟı
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#8
07-20-2006, 02:50 PM
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Re: What a pain in the keister: Here is a test for you!
My first guess would be a vacuum leak since it's running OK at higher RPM's. But, that wouldn't cost $60 to fix. Unless it possibly had to do with a MAP sensor....
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#9
07-20-2006, 03:26 PM
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Re: What a pain in the keister: Here is a test for you!
I'm going to agree with srbianats and go with the dist cap.
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billibong 99 4X4 Blazer LS Vin W Repairs: U/L Ball Joints, I/O Tie Rod Ends, New Tie Rod Adjusting Sleeves, New Idler Arm, R & L Front Hubs, R & L Upper CA Bushings, New Gabriel Ultramax Shocks (what a difference) F & R Brakes and Rotors at 110,000. Infinity Speakers to replace the blown factory sets. 162K+ and still kicking.
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#10
07-20-2006, 05:10 PM
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Re: What a pain in the keister: Here is a test for you!
Was the cable to your MAF unplugged? ha.
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#11
07-20-2006, 05:38 PM
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Re: What a pain in the keister: Here is a test for you!
He doesn't have a MAF system.
Not a vacuum leak or the rpms would be higher. Stalling and lower rpms almost makes me thing a PCV valve was plugged. That or the fuel filter is clogged. It can't be a sensor seeing it would trip a SES light. I think it was fuel or PCV or a restricted CAT.
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1995 Factory Blazer Service Manual for sale, PM if interested.
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#12
07-20-2006, 05:45 PM
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Re: What a pain in the keister: Here is a test for you!
I'm sure that it's going to be the last thing that we think of otherwise he wouldn't have started a thread about it. Even so, I'm going to guess a shorted battery, at low rpms the alternator could supply enough power to deal with the battery and provide enough for the electronics, injector, and fuel pump to function properly.
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#13
07-20-2006, 06:04 PM
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Re: What a pain in the keister: Here is a test for you!
Id say operater malfunction?....seen as how it took 60 bucks...he prob got drunk on?...lol
__________________
08 Equinox LT
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#14
07-20-2006, 06:20 PM
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Re: What a pain in the keister: Here is a test for you!
Nope. nope, and ,more nope...I'll post the fix tomorrow... Keep on guessing though!
__________________
95 s10 Blazer, EGR Mod, ZQ8 Steering box mod, 99 Center console shifter mod and more... See everything at www.pghconsulting.net/teal
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